Either canola oil or  peanut oil should work great, canola oil is generally less  expensive of the two and considered the healthiest, but peanut oil  is often recommended because of the flavor it gives fried foods.   Answer2: I actually read that coconut oil is the best for frying  and olive and avocado oil are excellent choices as well.
So in conclusion: while R itself is mostly written in C (with hefty chunks in R and Fortran), R packages are mostly written in R (with hefty chunks written in C/C++). librestats: How Much of R is Written in R Part 2: Contributed Packages. Posted by David Smith at 14:57 in developer tips, R | Permalink.
An Introduction to R. This is an introduction to R (âGNU Sâ), a language and environment for statistical computing and graphics. R is similar to the award-winning1 S system, which was developed at Bell Laboratories by John Chambers et al.